The start of veteran infielder Zack Cozart’s career with the Angels was marred by a left shoulder injury that required surgery. The torn labrum ended his 2018 season in June, but the repair was supposed to put him back on track in time for the Angels to extract some value from the three-year, $38-million contract they signed Cozart to in December 2017.

That now is again called into question. Cozart, mired in a deep slump all season, was placed on the injured list Tuesday because of recurring inflammation in his left shoulder. He returned to Southern California to see a doctor and determine how long it might be before he can rejoin the active roster.

Cozart entered the season figuring to be a daily component of the Angels’ infield, but he did not hit well enough to keep an everyday job. Cozart, 33, hit .124 with a meager .322 on-base-plus-slugging percentage in 38 games before this injury.

“It’s been bothering him here recently, especially on swings, not so much in the field,” manager Brad Ausmus said at the Oakland Coliseum. “When he swings and misses, [the shoulder] kind of grabs him.”